Stovepipe joint or coupling



R. KERSTEN.

STOVEPIPE JOINT 0R COUPLING.

APPLlcmoN mso nov. 9. 1915.

1,356,373, Patnted Oct. 19, 1920.

UNITED STATESE LATENT OFFICE.

RUDOLF KERSTEN, or DRESDEN, NORTH DAKOTA.

STOVEPIPE JOINT OR COUPLING.

To all whom t may concerns Be it known that I, RUDOLF KERSTEN, a citizenof the United States, residing at Dresden, in the county of Cavalier andState of North Dakota, have invented certain new and useful Improvementsin Stovepipe Joints or Couplings, of which the following is aspecification.

This invention relates to the class of stoves and furnaces, and morespecifically to stoveg pipe joints or couplings.

The object of my invention is to provide a stove pipe oint or couplingto which from one to three lead pipes may be connected and having a mainoutlet. The intake branches of the joint are so joined to themain outletthereof that there will be a direct draft through all of the lead pipesconnected with said joint. Acute angles or bends are avoided in` myconstruction, thus eliminating improper draft to the` stove or furnace.My invention also contemplates the tight closing of any of the branchintake pipes not in actual use, whereby the entire draft is received bythe branch or branches being used.

Other objects of this invention not at this time more particularlyenumerated, will be clearly understood from the detailed description anddrawings forming a part of this specification.

Furthermore, this invention consists in the novel arrangement andcombination of parts more particularly described in the fol lowingspecification and embodied in theV claim appended hereunto and formingapart of this application.

The ligure of the drawing is a front elevation of my stove pipe joint orcoupling.

Referring further to the drawing, l designates the body portion of myjoint, from which a main outlet pipe 2 projects, while oblique branchinlet pipes 3 and 4 are formed integrally with said body portion and areof substantially the same diameter as 2 and are oppositely disposed withrespect to said main outlet pipe 9., and at an oblique angle thereto. ininlet branch 5 is secured to said body portion within the crotch formedby the obliquely disposed branches 3 and 4, said branch 5 being inalinement with the main outlet 2 and of approximately the samediameter.'

Furthermore, the angle of entry of the pipes 3, 4 and 5 is of such adegree that lines drawn from the internal sides of the pipes 3 and 4 andthroughthe medial axis of the Specification of Letters Patent.

Patented Oct. 19, 1920.

Application led November 9, 1915. Serial No. 60,520.

.pipe 5 will intersect at a point equidistant from the exterior sides ofthe body l, at the point where the said body l is of a diameterequivalent to the combined diameters of the pipes V3 and 4 and also,lines drawn through the medial axes of each of the pipes 3, 4 and 5 willintersect on the medial axis of the pipe 2 at the point where it entersthe body l. By this bconstruction it willbe clear to persons skilled inthe art to which ,this kinvention applies, that a complete scavenging ofthe body l will be effected on account of the great improvements in thedraft therethrough. It being pointed out that the greatest combinationof air currents will be at the point of intersection of the pipe withthe body 1, while the first actual combining of the draft of the aircurrents from the pipes 3, 4 and 5 will be at the point where the medialaxis of the branch 5 and lines drawn from the interior sides of thebranches 3 and 4 intersect as heretofore mentioned.

The utility, adaptability, and advantages `I do not limit myself to theshape of certain parts where the shape is not essential, nor do .lrestrict myself to the exact details of construction shown anddescribed, but mean and intend to claim allequivalents and variationsthereof, not departing in principle from my invention, and fallingwithin the purview of the appended claim.

What I claim as my invention and desire to secure by Letters Patent is:

A pipe oint consisting of a body portion, an outlet pipe formed on thebody portion, obliquely disposed inlet pipes formed inte-y grally withthe body portion, an inlet pipe connected with the body portion betweenthe oblique inlet pipes and'communicatinfr` with the body portion forintersection with the oblique inlet pipes at a point substantiallyone-third of their length, the extremi-y ties of the oblique inlet pipesbeing bent to extend substantially parallel with the intermediate inletpipe, and the walls of the body portion being slightly indented to forma continuation of the curvature of the walls of the inlet pipes. Y

In testimony whereofI affix my signature hereto. f

RUDOLF KERSTEN.

